Joseph l



(N0 Model.) 2Sheets-Sheet 1.

' J. L. 00X.

PRINTING PRESS. No. 464,857. PatentedDec. 8, 1891;

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(No Model.) 2 Sheets-Sheet 2.

J. L.v COX. PRINTING PRESS.

N05464:,857. Patented Dec. 8,1891.

UNITED STATES PATENT OFFICE.

JOSEPH L. COX, OF BATTLE CREEK, MICHIGAN, ASSIGNOR TO THE DUPLEXPRINTING PRESS COMPANY, OF SAME PLACE.

PRINTING-PRESS.

SPECIFICATION forming part of Letters Patent No. 464,857, dated December8, 1891.

Application filed January 19, 1891. Serial No. 378,196. (No model.)

To all whom it may concern: the ends of a shaft '6, journaled in theframe Be it known that I, JOSEPH L. COX, of Batbelow shaft G, as shown.The gear-disks are tle Creek, in the county of Calhoun and State drivenby meshing with pinions j on a driven of Michigan, have invented certainnew and shaft J, journaled in bearings in the frame useful Improvementsin Printing-Presses; and lying immediate shafts g i. As shown,

andI do hereby declare that the following is the said shafts are locatedbetween the plata full, clear, and exact description thereof, refens.The carriers are adapted to have typeerence being had to theaccompanying drawforms T T secured to their inner faces, as inings, andto the letters of reference marked dicated in the drawings, and they areinxo thereon,which form part of this specification, clined so that thetype are not horizontal in which nor liable to drop out, and, further,the arm- Figure 1 is aside elevation of my improved pivots of thecarrier-supports are so located web-perfecting printing-press. Fig. 2 isa in relation to the inclination of the platens diagrammaticallongitudinal sectional View that the type on the forms will be broughtI5 illustrating the travel of the web through the squarely and trulyagainst the platens when 6 5 press. the carriers are brought inward. Mypresent invention is an improvement in WV designates the roll of paper,mounted in web-printing presses; and its object is to proproper bearingson the frame below carrier C. vide a simple perfectingpress, wherein theJ designates a web-guide roller journaled 2o impressions can be takenfrom the type-forms on the upper ends of upwardly-inclined trackdirectand no type or impression cylinders ironsj, attached to the frame, and Kisa govare employed. ernor-roller carried by a car is running on saidThe invention consists in the novel conirons, and which is adapted tocontact with struction and combinations of parts for opand operate abrakemechanism indicated in 25 crating the type-form carriers andshifting the drawings, so as to control the revolution or feeding theweb through the press, all of of the roll of paper. This governor-rollerand which will hereinafter be clearly described brake form no part ofpresent invention in and claimed. the peculiar construction thereof, andare Referring to the drawings by letters, A B fully described in mypatent, No. 370,321, of 0 designate two opposite outwardly-facing plat-September 20, 1887.

ens secured centrally and transversely in the Other devices might beused to form a comframe of the press, and substantiallyparallel,pensating-loop of paper between the roll and but preferably set so thatthey incline toward platen A.

each other from top to bottom. L designates a looping-roller locatedabove 35 a a and bi) are web-guide rollers journaled platen B andjournaled in the ends of oscilin the frame of the press at the upper andlating levers M, which are pivoted at their lower ends of the platens,respectively. other ends on a transverse shaft or lugs Z on C Ddesignate type-form holders or carriers the frame above platen A, and mm are fric' exterior to and opposite the platens A B, retion-rollersattached to said levers about cen- 0 spectively, and each supported onarms 0 (Z, trally thereof and bearing upon and supported which arepivoted or journaled at their lower by cams 0, mounted on the ends of ashaft ends on transverse shaftsfor lugs E, attached 0, journaled in theframe and driven by a to the frame so that the carriers can be movedgear P, meshing with gear-disk G, and Q desup to and away from theplatens A B. Carignates a delivery-roll on said shaft, and q q 45 rier Cis operated by pitmen F, connected to a series of endless tapes coactingwith said 5 their ends and to wrist-pins fon gear-disks G, roll andrunning over a triangularly-arranged I fixed to the outer ends of ashaftg, journaled setof rollers and driver R r r, journaled in in the frame,and carrier D is similarly operthe frame, as shown. The gears should beated by pitmen ll, connected to their ends arranged so as to raise orlower roller L once 50 and to wrist-pins h on gear-disks I, fixed onduring each reciprocation of the carriers. :00

The pitmen, gears, &c., are duplicated at each side of the machine. Theweb of paper 21; is taken from roll NV over roller J, looped down underroller K, up to roller a, thence over the face of platen A to roller a,then down in rear of and between platens A B, to

- and under rollers Z), up over the face of i of web between theplatens.

platen B to roller Z), then looped over roller L, down under roller S,journaled in the frame above platen B, and to the delivery rolls andtapes, as indicated. The operation is simple. After the web is threadedthrough the press, as described, and looped over roller L while thelatter is elevated, the carriers 0 D are moved inward, and at the sametime the roller L is lowered to such a degree and in such time thatenough paper is paid off from the loop to enable the delivery mechanismto deliver web continuously after impression, but prevents any web beingwithdrawn from the roll, or rather over the platens, until the roller Lis moved upwardly, which is not until the impression has been completed.After the impression the carriers move outward and at the same timeroller L is raised, and it, together with the continuous action of thedelivery, draws the web through the press sufficiently to bring a freshportion of the web into position for printing. Theloopingroller Kprevents any slack of the web getting in the press between it and theloopinging-roller and always maintains a uniform tension on the web. Thedelivery mechanism might be made positive, if desiredthat is, coactingfeed-rolls might be used; but I prefer the tapes, as they can be moredelicately adjusted, and they comb the web constantly forward withoutdanger of tearing or breaking it. It will be observed that the face ofthe web imprinted on platen A is immediately turned down behind theplaten and up against the face of platen B, so that by simply arrangingthe platens parallel and directing the web first over the face of oneplaten, then down between the platens, and immediately up over the faceof the other platen the opposite sides of the web are brought intoposition for receiving registering impressions and the register can beproduced simply and quickly without any twist of the Web, and there isonly a straight length This enables 14 me to dispense with any positiveinfeed for the paper, if desired, and to make the looping and deliverydevices perform the offices of feed devices also. The web-operatingdevices are so adjusted that the amount of the web fed forward or thelength of web moved between the forms after each impression is equal tothe length of an impression and As, however, the perfecting-impressionon the web does not immediately follow after the first impression, thetotal forward movement of the web from the point of the first impressionto the point of the second impression, directly registering therewith,is a multiple of the length of paper required for each impression plusthe necessary margins, this being necessary in order that theimpressions on the opposite sides of the web shall be directly op-'posed to allow the web to be afterward properly cut and folded.

The type-forms should be inked after each impression, preferably bymechanlcal means, which, however, do not form an essentialpart ofpresent invention, and hence is not shown or described herein.

Having described my invention, what I claim as new, and desire to secureby Letters Patent thereon, is-

1. In a printing-press, the combination of two substantially parallelplatens, two typecarriers coactingtherewith, and a delivery mechanismwith a looping-roller for looping the web after it has beenfinallyimprinted before it reaches the delivery, substantially as andfor the purpose specified.

2. The combination, in a perfecting printing-press, of twooppositely-facing platens, two oppositely-facing form-carriers coactingtherewith, and a delivery mechanism with means, substantially asdescribed, for C011? ducting a web of paper successively between theplatens and carriers and to the delivery, and a roller for looping theweb between the last platen and the delivery, substantially as setforth.

3. In a web-printing press, the combination of a platen and aform-carrier coacting therewith and a paper-delivery mechanism with alooping-roller adapted to loop the web between the platen and deliverymechanism and to throw off the loop during-the impression and to assistin drawing forward the web after the impression, substantially as setforth.

4. The combination, in a web-perfecting printing-press, of tworeciprocating form-carriers, two independent platens, a paper-delivery,and a positivelyactuated loopingroller with means, substantially asdescribed, for feeding a web of paper between the first platen andcarrier, then between the platens, then between the second platen andcarrier, and over the looping-roller to the delivery, substantially asset forth.

5. The combination of the oppositely-fac ingplatens, theoppositely-facing form-carriers coacting therewith, and the deliverymechanism with the guide and looping rollore for directing the web,substantially as specified.

6. The combination of the form-carriers, the oppositely facing platensintermediate and coacting withsaid carriers, and the delivery mechanismwith the web-looping roller L, the levers M, and cams for actuating thesame to raise and lower the roller once for each reciprocation of theform-carriers, sub stantially as described.

7. The hereindescribed web perfecting printing-press, consisting of twooppositely IISI' facing platens, two exterior movable form-carrierscoacting' with said platens, Web-guide rollers for directing the Webbetween one carrier and platen, then between the platens, and thenbetween the last platen and carrier, a paper-web delivery, anidler-roller or governor for looping the Wb between the paper roll andfirst platen, and a positively-actuated looping-roller for looping theweb between the

